A double threshold shower base is designed for a corner enclosure, with raised edges along two sides to help contain water. The right choice depends on more than the outside dimensions: drain position, curb height, surface, and installation method all need to match your bathroom. These three options include two center-drain bases and one corner-drain model, so check your plumbing layout before choosing.
Table of Contents
Quick Comparison
| Shower Base | Size | Drain | Notable Details |
|---|---|---|---|
| GreatCho 36 x 36-Inch Double Threshold Shower Base | 36 x 36 in. | Center | Black high-gloss acrylic; non-slip performance claimed |
| Fine Fixtures 32 x 32-Inch Double Threshold Shower Base | 32 x 32 in. | Center | White textured surface; integrated tile flange |
| DreamLine SlimLine 36 x 36-Inch Shower Base | 36 x 36 in. | Corner | White; low-profile design; cUPC certified |
Our Picks: Best Double Threshold Shower Base reviews
GreatCho 36 x 36-Inch: Black Finish with a Center Drain
The GreatCho is a square, 36-by-36-inch corner shower base with two raised thresholds and a center drain. Its black, high-gloss finish gives it a more striking look than the white options in this group, so it may suit a modern bathroom where the base is meant to stand out.
The manufacturer describes the base as one-piece molded acrylic, with a smooth surface designed to resist stains, corrosion, and yellowing. It also claims non-slip performance, though the listed finish is glossy rather than a clearly described textured pattern. If grip is a top concern, confirm the surface details and consider how it will feel when wet.
The center drain can work well when your existing plumbing or planned rough-in is positioned near the middle of the shower. However, a center drain is not a universal fit; compare the drain location with your floor plumbing before buying. The product information also does not specify whether a drain is included or give installation instructions, so verify those details before starting a project.
Pros:
- 36-by-36-inch size for a corner enclosure
- Center drain layout
- One-piece acrylic construction with a glossy black finish
- Double thresholds help contain water at the two exposed sides
Cons:
- The black finish may not suit bathrooms designed around white fixtures
- Drain inclusion and detailed installation requirements are not specified in the supplied product information
Verdict: Choose the GreatCho if you want a black 36-inch base with a center drain and have confirmed that its drain layout and installation requirements match your project.
Fine Fixtures 32 x 32-Inch: Textured Surface and Tile Flange
This 32-by-32-inch Fine Fixtures base is the smallest option here, which may be useful when a bathroom has limited space or an enclosure built for that footprint. It has a white finish, a center drain, and a textured surface intended to provide slip resistance.
The base is described as reinforced fiberglass acrylic. Its integrated tile flange is designed to help keep water from seeping behind the base and into the walls. That feature can be useful in a new build or remodel, but it does not replace careful waterproofing and installation according to the product instructions.
Fine Fixtures describes the base as having a low curb and a gentle slope toward a standard fitted drain. The listed information says five sizes are offered, but it does not identify the measurements of each option here. Make sure you select the size that matches your enclosure and confirm the drain location before ordering. Compared with the two 36-inch choices, this model provides a more compact footprint.
Pros:
- Compact 32-by-32-inch footprint
- Textured surface designed for slip resistance
- Integrated tile flange helps protect the wall area
- Low curb and center drain
Cons:
- Smaller than the two 36-by-36-inch options
- Drain is described as standard fitted, but inclusion is not specified
Verdict: The Fine Fixtures is a practical candidate for a compact corner shower if its 32-inch size, center drain, and flange suit your enclosure and installation plan.
DreamLine SlimLine 36 x 36-Inch: Low-Profile Corner-Drain Design
The DreamLine SlimLine is a white, 36-by-36-inch double threshold base for a two-wall corner installation. Its listed height is 2¾ inches, giving it a low-profile design. The key difference from the other picks is its corner drain, so it is best considered when your drain rough-in matches that location.
The product information specifies installation directly to the studs and says professional installation is required. It is cUPC certified, and the drain opening fits standard 2-inch compression-fitted drains. The drain is not included, so you will need to plan for a compatible drain separately. Check the technical drawing for the exact drain position before committing, as the supplied details direct shoppers there for precise placement.
Compared with the GreatCho, this model has a white finish and a corner drain rather than a center drain. Compared with the Fine Fixtures, it offers a larger footprint but does not list a textured surface. Its installation requirements also make it a better fit for a project with professional help than for a quick, do-it-yourself swap.
Pros:
- 36-by-36-inch size with a low 2¾-inch height
- Corner drain for compatible plumbing layouts
- cUPC certified
- Fits standard 2-inch compression-fitted drains
Cons:
- Drain is not included
- Professional installation is required, and the surface is not described as textured
Verdict: Pick the DreamLine SlimLine if you need a white 36-inch base with a corner drain and can meet its direct-to-studs, professional-installation requirements.
How to Choose a Double Threshold Shower Base
Measure the Enclosure and Available Floor Space
Measure the shower area from wall to wall, then compare those measurements with the base’s stated width and depth. A 32-by-32-inch base and a 36-by-36-inch base are not interchangeable unless the enclosure and surrounding walls can accommodate the size. Also check the product drawing for the actual dimensions and any installation clearances.
Match the Drain Location to Your Plumbing
Drain placement is one of the most important fit checks. The GreatCho and Fine Fixtures models list center drains, while the DreamLine lists a corner drain. Compare the location in the manufacturer’s technical drawing with your existing drain or planned plumbing rough-in. Moving plumbing can add work, so do not choose by overall size alone.
Check the Threshold and Enclosure Layout
A double threshold base is made for a corner setup, with raised edges along two sides. Confirm that the walls will meet the base on the correct sides and that the open sides will line up with your shower enclosure. Review the curb height and entry needs as well, especially if easier access is a priority.
Consider Surface and Material Details
A textured surface, like the one specified for the Fine Fixtures model, may be preferable if grip is important. The GreatCho describes its smooth glossy surface as having non-slip performance, but it does not provide the same texture detail. The DreamLine product information does not specify a textured finish. Compare the surface descriptions carefully and avoid assuming that every smooth or glossy base offers the same traction.
Understand Flanges and Water Protection
The Fine Fixtures base lists an integrated tile flange intended to help prevent water from reaching the wall area behind it. The supplied information for the other models does not describe a flange, so check their technical documents if this feature matters to your installation. A flange is one part of a water-management system; correct wall waterproofing and installation still matter.
Plan for Installation and Drain Parts
Installation needs vary by model. DreamLine specifies direct-to-studs installation and professional installation, and its drain is not included. For the GreatCho and Fine Fixtures bases, the supplied details do not clearly say whether a drain is included or describe the full installation method. Read the current product instructions and confirm required parts before work begins.
Choose a Finish That Works with the Bathroom
The GreatCho has a glossy black finish, while the Fine Fixtures and DreamLine bases are white. Think about how the base will look next to the enclosure, tile, fixtures, and other bathroom surfaces. The finish is also a practical choice: confirm cleaning guidance from the manufacturer, particularly if you plan to use strong cleaners.
Frequently Asked Questions
What does “double threshold” mean?
It describes a shower base with raised thresholds on two sides, commonly used in a corner shower where the other two sides meet walls. Check that the base’s intended corner orientation matches your enclosure.
Are the three bases the same size?
No. The GreatCho and DreamLine models are 36 by 36 inches, while the Fine Fixtures model is 32 by 32 inches. Measure your shower space and enclosure before selecting one.
Which of these bases has a center drain?
The GreatCho and Fine Fixtures models list center drains. The DreamLine SlimLine lists a corner drain. Verify the exact drain position on the product drawing before ordering.
Does the DreamLine base include a drain?
No. Its product information says the drain is not included. It specifies compatibility with standard 2-inch compression-fitted drains.
Which option has a textured surface?
The Fine Fixtures base is described as having a non-slip textured surface. GreatCho describes its glossy surface as having non-slip performance, but the supplied details do not describe it as textured. The DreamLine information does not specify a textured finish.
Can I install a double threshold shower base myself?
Installation depends on the model and your plumbing and wall setup. DreamLine says professional installation is required and calls for installation directly to the studs. For the other models, consult the manufacturer’s instructions and consider using a qualified installer if the plumbing or waterproofing work is unfamiliar.
How should I choose between a center drain and a corner drain?
Choose the drain layout that matches your plumbing plan, not just the one that looks best in a product photo. Compare the drain’s exact position with the technical drawing and account for any plumbing changes your project would require.
Final Recommendation
For a 36-by-36-inch corner shower with a center drain, the GreatCho stands out if you want a black finish. The Fine Fixtures is the more compact option and specifies a textured surface and integrated tile flange. Choose the DreamLine SlimLine when its corner drain matches your plumbing and you can follow its professional-installation requirements. Before buying any of them, confirm the measurements, drain position, included parts, and installation instructions for your exact project.
